Security firm Symantec was attacked by a hacker back in February 2021 in which the hackers extracted some of the data.
This comprises not only passwords but a list of Symantec clients -- including government agencies.
The hacker was able to access a list of clients using Symantec's CloudSOC services, account managers and account numbers.
Source: https://betanews.com/2019/06/14/symantec-hack/
"id": "SYM1336271222",
"linkid": "symantec",
"type": "Breach",
"date": "02/2019",
"severity": "60",
"impact": "3",
"explanation": "Attack with significant impact with internal employee data leaks"